pupae (changeling) is chrysalis' younger sister who was banished from the hive for not being useful, based on the fact that bees will kill their queen if she stops being useful, or if there is another queen already (but in a more PG-13 way, obviously, this is my little pony.)
rakkit (taur) is a bookworm egghead. he """moved""" to equestria after finding out that books are more readily available to the public compared to his home kingdom, but in reality he lives in the everfree forest and scavenges around the princesses' ruined old castle for books, since he doesnt have the courage to just show up onto a pony town when equestria has a bad history with taurs.
these two are also friends who started out as pen pals; theyre not the most compatible, because pupae is a little bastard and rakkit is a bit stern, but theyre also each others' only real friends, so eh, youll take what you can get.
EDIT: i have juuust realized that i accidentally saved with the sketch visible underneath… oof. to be fair, i originally drew the sketch to be posted instead, and just went a bit overboard with the picture for like 5 hours. so its not that big of a deal? but still. that sux. ehh…. well, its not really gonna kill me either way.